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Electronic Structure: Electron Spin definitions

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  • Orbital
    A region within an atom where up to two electrons with opposite spins are likely to be found.
  • Electron
    A negatively charged subatomic particle that occupies orbitals and exhibits spin properties.
  • Pauli Exclusion Principle
    A rule stating that no two electrons in the same orbital can share identical spin values.
  • Spin-Up
    A state of an electron represented by an upward arrow, associated with a spin value of +1/2 and clockwise rotation.
  • Spin-Down
    A state of an electron depicted by a downward arrow, linked to a spin value of -1/2 and counterclockwise rotation.
  • Electron Spin
    An intrinsic property of electrons describing their rotational direction within an orbital.
  • Spin Value
    A quantum number assigned to electrons, either +1/2 or -1/2, indicating their rotational direction.
  • Clockwise Rotation
    The rotational direction associated with a spin value of +1/2 for an electron.
  • Counterclockwise Rotation
    The rotational direction associated with a spin value of -1/2 for an electron.
  • Arrow Representation
    A visual method using up or down arrows to indicate the spin direction of electrons in orbitals.
  • Opposite Spins
    A requirement for two electrons in the same orbital to have different spin directions, one up and one down.
  • Atomic Orbital
    A specific region around an atom's nucleus where electrons with preservable spins are likely to be located.